2, Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Jena, , Germany
3, Pan African University, Institute of Water and Energy Sciences, Tlemcen, , Algeria
4, Department of Chemistry, 731 Campus Place N.W., University of Calgary, Calgary, Alberta, Canada
5, Linz Institute for Organic Solar Cells (LIOS), Johannes Kepler University Linz, Linz, , Austria
6, King Abdullah University of Science and Technology (KAUST), KAUST Solar Center (KSC), Physical Sciences and Engineering Division (PSE), Material Science and Engineering Program (MSE), Thuwal, , Saudi Arabia
7, Institute of Polymeric Materials and Testing, Johannes Kepler University, Linz, , Austria
Non-fullerene acceptors (NFA’s) have been receiving increasing attention for application in polymer-based bulk-heterojunction organic solar cells, as they have demonstrated improved photovoltaic performances over more conventional polymer-fullerene blends. Here, polymer solar cells based on statistically substituted anthracene-containing poly(p-phenyleneethynylene)-alt-poly(p-phenylenevinylene)s (PPE–PPVs) copolymer (AnE-PVstat) were investigated in combination with various electron accepting materials. In contrast to blends with PCBM, strong photoluminescence quenching of specifically the polymer indicates fine-scaled intermixing of materials. This was accompanied by a very weak photovoltaic function. By application of Time-Delayed Collection-Field (TDCF) measurements, it could be seen that charge generation and extraction was strongly limiting performance in these blends.